Carbureter.



F. BAVEREY.

CARBURETER.A

APPLICATION FILED rEB.1. 1914A.

Patented J une 27, 1916.

F. BAVEREY. -CA RBUHETR. y APPLICATION FILED FEB- I. |914.

Patented Jun@ 27,1916.v

@gft w A/ ff/Zw a citizen of the French Republic, residing at" FRANQOIS BAVEBEY, OFOULLINS, FRANCE.

CARBURETER.

Specification ot Letters Patent.

Patented June 27, 1916-.

Application filed February 7, 1914. Serial No. 817,275.

To all 'whom t may concern:

Be it known that I, FRANgoIs BAvEREx,

Qullins, in France, have invented certain new and useful Improvements in Carbureters for Expiosion-Engines, of which the follow-ing is a specification.

This invention relates to improvements in carbureters for explosion engines.

The device which forms the object of the present invention is applicable to carbureters for explosion engines comprising an auxiliary fuel nozzle fed from a well open to the atmosphere and having its orifice in the choke tube adjacent the edgel of the throttle valvef This auxiliary nozzle serves when the throttle valve is very slightly open during slow running of the motor and when the ordinary fuel nozzle furnishes no fuel or but al very small supply of fuel, to furnish an emulsion rich in fuel or spirit which mixes with the air passing through the restricted aperture due to the slight opening of the throttle valve in order to form a suitable mixture. The quantitative proportions of this emulsion can be regulated as desired.

The invention is illustrated by way of example in the accompanying drawing which shows the device applied to a horizontal carbureter.

Figure 1 is a vertical section on the line A--A Iin Fig. 2. Fig. 2 is a plan partially in section on the line B-B in Fig. 1. Figs. 3 and 4 illustrate in section and on a larger scale two constructional forms of the low speed device. l

The carbureter (Figs. 1 and 2) comprises two concentric vertical nozzles. the central nozzle 1 being supplied in the ordinary manner by the constant level reservoir 3 and the annular nozzle 2 which is termed a compensating nozzle is supplied by the well 4 open to .the atmosphere and receiving the fuel through a calibrated orifice These two nozzles have their orificeson -the aXis of the horizontal suction pipe 6, which is provided on one end with an air inlet device 7 and at the other end with a throttle valve 8 and a flange 9 which may be connected directly with a pipe cast in the engine and leading to the admission collector or chamber while passing through the water chamber. The nozzles land 2 are operative during normal running.

An orifice 10 in the suction pipe and opposite the edge of the throttle valve 8 feeds the fuel from the bottom of the well 4 of the compensator through the channel 11 and the low speed device represented in Fig. 3. This device comprises a chamber 12 situated above the 4compensation well 4 and into which the fuel is fed through the calibrated orifice 5. This chamber which is closed by a screw plug 13 is in connection with al chan. l.

nel 11 leading to the orifice 10. The botvtom of the chamber 12'is closed by' a plug 14 vcarrying at its center a screw member 15 comprising a tube 16, the lower end -of .which is conical inside as at 17. The tubev 16 is in constant communication withy the channel 11`by means of orifices 18 and 19. To the underside of the plug'14 a tubular chamber 20 is screwed, inside at the bottom of which is a cone 21 which passes into the mteriorly coned end 17 of the tube 16 to a greater or less extent. At its center, the cone 21 is provided with a calibrated orifice 22 which is continued by the suction pipe 23 which extends almost to the bottom of the well 4. The chamber 20 is in constant com- `munication with the atmosphere throughY the orifices 24 and 25. On stopping the engine and during slow idle running, the level of the fuel takes the line -upon the same plane 'as the constant level in the fuel cham- Then the engine is running at low speed withthe throttle valve almost closed, the diminution of pressure caused by the suction of' the engine is transmitted through the orifices 19 and 1S to the fuel orifice 22 and also between the cones 17 and 21,.between which air can pass coming from the chamadjacent orifice 22 which emulsion in mixing with the air passlng around the throttle valve forms a suitable explosive mixture.

The proportion of spirlt contained 1n this mitted through the orifices 26, the sizes of whichl are determined at the time of constructlon of the device; theoperation of 4ber 20: accordingly an emulsion -is formed opening in said channel, means to supply fuel to said auxiliar)v nozzle in which the level remains below the orifice of said auxiliary nozzle, means to supply air to said channel, whereby to fui'nish an emulsion rich in fuel when said throttle valve is slightlyA open and means to adjust said auxiliary nozzle.

2. In a carbureter, the combination of a' suction pipe having an air inlet, a fuel nozzle therein, means to supply fuel to said nozzle, a throttle in said suction pipe, a channell having its orifice in the wall of said suction pipe in proximity to the throttle, an auxiliary nozzle opening in said channel. means to supply fuel to said auxiliary nozzle in which ther level remains below the orifice. of said auxiliary nozzle, meansto supply air to said channel, whereby to furnish an emulsion rich in fuel when said throttle valve is slightly open, and means to regulate the supply of air to the said auxiliary channel said nozzle comprising independently adjustable parts.

3. In a carbureter, the combination of a suction pipe, an air inlet device therefor, a throttle valve in said suction pipe, a fuel nozzle, an annular compensating nozzle surrounding said fuel nozzle, means for supplying fuel to said nozzles, .an auxiliary fuel nozzle communicating with a channel having its orifice in the wall of the suction pipe opposite the edge of the throttle valve, the opening of said auxiliary nozzle being slightly above the level of the fuel in the,-

said fuel supply means. a well having an oriice in its-base for the'admission of fuel thereto, and an orifice for the admission of air thereto. a plug comprising a chamber closing said well, a conduit connecting said chamber with said auxiliary nozzle, a tube provided with air admission orifices connected to said plug and extending into said well, said orifices being slightly above the level of the fuel in said fuel supplying means, and means for supplying fu`e1 from said well to said tube so that it is emulsified therein by the air admitted through the air admission orifices in said tube. l

4. In a carbureter, the combination of a suction pipe, an air inlet device therefor, a throttle valve in said suction pipe, a fuel nozzle, an vannular compensating nozzle surrounding said fuelnozzle, means for supplying fuel to said nozzles, an auxiliary fuel nozzle communicating with a channel having its orifice in the wall of the suction pipe opposite the edge of the throttle valve, la well having an orifice in its base for the advmission of fuel thereto, and an orifice for the admission of air thereto, a plug comprising a chamber lclosing said well, a conduit connecting said chamber with said auxiliary nozzle, a tube provided with air admission orifices connected to said plug and extending into said well, a cone having al central orifice for the supply of fuel arranged at the bottom of said tube, a tubular member in comiiiunication with said chamber and having suction pipe li. ving an air inlet, a fuel noz.

zle therein, a compensating nozzle coperating with said fuelnozzle, means for supplying fuel to said nozzles, a throttle in said suction pipe, a channel having its orifice in the wall of said suction pipe in proximity to the throttle, an auxiliary nozzle opening into said channel, means to supply fuel to said auxiliary nozzle. in which the level remains below the orifice of said auxiliary nozzle, and means to supply air to said channel, thereby to furnish Aan emulsion'rich in spirit when said throttle is slightly open.

6. In a carbureter thecombination of a suction pipe having an air inlet, a fuel noz- 'zle therein, a compensating nozzle, means for supplying fuel to said nozzles, a tlirottle in said suction pipe, a channel having its orifice in the wall of said suction pipe 11i proximity to the throttle, an auxiliary' nozzle opening into said channel, means to supply fuel to said auxiliary nozzle, in which the level remains below the orifice of said auxiliary nozzle, means to supply air to said channel, thereby to furnish an emulsion rich in spirit when said tlirottles are slightly' open, and means to regulate the supply of air to the said auxiliary channel.

7. In-a carbureter, the combination of a suction pipe, an air inlet device therefor. a throttle valve in said suction pipe, a fuel nozzle, a compensating nozzle, means for supplying fuel to said nozzles. an auxiliary fuel nozzle communicating with a channel having its orifice in the wall of the suction pipe opposite the edge of the throttle alve whereby the latter controls or regulates the Outlet of the emulsion channel, the opening of said auxiliary nozzle'being slightly above the level of the fuel in the said fuel supply means, means for supplying fuel to said auxiliary nozzle, and means for supplying air to said auxiliary nozzle adjacent the opening thereof whereby to furnish an emulsion rich in spirit when said throttle valve 'is slightly open.

8. In a carbureter, the combination of a suction pipe, an air inlet device therefor, a throttle valve in said suction pipe, a fuel nozzle, a .compensating nozzle, means for supplying fuel to said nozzles, an auxiliary nozzle communicating with a channel having its orifice in the wall of the suction pipe near the edge of the throttle valve, whereby the latter controls the outlet of the emullsion to the suction pipe, means for supplying fuel to said auxiliary nozzle, means for supplying air to said'auxiliary nozzle adja-l cent the opening thereof to furnish an emulsion rich in spirit when said throttle valveis slightly open, by-suction on the fuel, the

opening of said auxiliary nozzle being slightly above the level of the fuel in said fuel supply means, and means to vadjust said auxiliary nozzle for regulating the quantitative proportions of the .said emulsion. A

9. A.ln a carburetor, the combination of a suction pipe, an air inlet therefor, a throt-.

tle valve in said suction pipe, a fuel nozzle,

means for supplying fuel to said nozzle,'

an auxiliary fuel nozzlecommunicating -with a channel having its orifice in. the

wall of the suction pipe near the edge of the throttle valve, said channel l being located exteriorly of the suction pipe and leading thereinto from above, the opening of said auxiliary nozzle being slightly above the level ofthe fuel in the fuel supply means, the inlet of said channel being above the level of the fuel, calibrated means for supplying fuel to said auxiliary nozzle, and means including said inlet for supplying air to said channel in such a manner as to furnish an emulsion rich in spirit when said throttle valve is slightly open.

10. ln -a carluueter, the combination of a suction pipe, an air inlet device therefor, means for controlling said air inlet. a fuel nozzle. means for supplying fuel to the. nozzle, an auxiliary fuel nozzle, a channel establishing communication between the. latter nozzle. and the suction pipe. said channel having its orifice in the wall of the suction pipe ucar the edge of the throttle valve, a well having an orifice for the admission of fuel thereto, and an orificefor the admission of air thereto, a closure for said well and forming a chamber, a conduit connecting said chamber with said auxiliary nozzle and having a fuel supply orifice above the level of the. fuel in said well, a lube connected to the said closure and extending into said Well, said tube having air admission orifices slightly -above the level of the fuel in said fuel supply means, the fuel from said Well to said tube being emulsified therein by the air admitted through the air admission orifices in said tube.

l1. In a carbureter, the combination of a suction pipe, a valve controlled air inlet device therefor, a fuel nozzle, an annular compensating nozzle surrounding said fuel nozzle, means for supplying fuel to said nozzles, an auxiliary nozzle having communication With the interior of the suction pipe opposite the edge of the throttle valve, a Well having an orifice in the base for the admission for fuel thereto, and an orifice for the admission ofair thereto, a chamber forming plug closing said Well, a conduit connecting said chamber with said auxiliary nozzle, a' tube provided with air admission orifices connected to said plug and extendingv into said Well, and concentric tubes in said Well, one of said tubes having a fuel supplying means, means to supply air therebetween and .means to supply fuel below said air supply means whereby a mixture will be produced bv the air passing thereby when the suction in the inlet is low.'

12. In a carbureter, the combination of a suction pipe, an air inlet device therefor, a r

throttle valve in said suction pipe, a fuel nozzle, means for supplying fuel to said nozzle, an auxiliary nozzle having its orifice in the wall of the suction pipe opposite the edge of the throttle valve, a Well having an orifice in its base for the admission of fuel thereto, and an orifice for the admission of air thereto, a plug comprising a chamber closing said vvell, a conduit con. necting said chamber With said auxiliary nozzle, a tube provided with air admission orifices connected to said plug and extending into said Well, a cone having a central yorifice for the supply of fuel arranged at the bottom of said tube, a tubular member in communication with said chamberv and having an interiorly coned lowerend capping said cone and forming `therewith an annular orifice for the supply of air to the fuel fed through the orifice of said cone by suction, means for the supply of fuel from said well to saidlast mentioned orifice and means for adjusting said tubular member to regulate the quantity of air passing through said orifice.

1?. ln a carbureter suction pipe, an air inlet device therefor, a throttle valve in said suction pipe, a` fuel nozzle, a compensating nozzle, means for supplying fuel to said nozzles. an auxiliar' fuel nozzle communicating with a channel having its orifice in the wall of the suction pipe opposite the edge of the throttle .valve` Athe opening of said auxiliarynozzle being loo the combination of a d slightly above the level of the fuel in the said fuel supplying means, a vvell having an means, and means for supplying fuel from said well to said tube so that it is emulsified therein by the air admitted through the air admission orifices in said tube.

let. In a carbureter the combination of a suction pipe, an air inlet device therefor, a throttle valve in said suction pipe, a fuel nozzle, a compensating nozzle, meansy for,

supplying fuel to said nozzles, an auxiliary fuel nozzle communicating with Ya channel having its orifice in the. Wall of the suction pipe opposite the edge of the throttle valve,

a well having an orifice in its base for the admission of fuel thereto, and an orifice for the admission of air thereto, a. plug comprising a. chamber closing ysaid well', a conduit connecting said chamber with said auxiliary nozzle, a tube provided with air admission orifices connected to said plug and extending into said well, a cone having a cent-ral orifice for the supply of fuel arranged at the bottom of said tube, `a tubular member in communication with said chamber and having an interiorlyconed lower end capping said cone and forming therewith an annular orifico for the supply of air to the fuel fed through the orifice of said cone, means for the supply of fuel from said well' to said last mentioned orifice, and means for adjusting said tubiilai' member to regulate the quantity of air passing through said annular orice.

15. In a carbureter the. combination of a suction pipe having an air inlet, a fuelnozzle therein. a compensating nozzle, means for supplying fuel to said nozzles, a throttle in said suction pipe, a channel having its orifice in the-wall of' said suction pipe in proximity to the throttle. an auxiliary nozzle opening into said channel, means to slipply fuelA to said auxiliary nozzle, in which the level ren'iains below the orifice of said auxiliary nozzle, and means to supply air to said channel, thereby to furnish an emulsion rich in spirit when said throttle is slightly open.

16. In a carbiireter the combination of a suction pipe having an air inlet, a fuel nozzle therein, a compensating nozzle. means for supplying fuel to said nozzles. a throttle in said suction pipe, a channel having its orifice in the wall of said suction pipe in proximity to the throttle, an auxiliary nozzle opening into said channel, means` to snpply fuel to said auxiliary nozzle, in vvhich the level remains beloiv the orifice of said auxiliary nozzle, means to supply air to said 4channel, thereby to furnish an emulsion rich in spirit vvhen'said throttle is slightly open, and means to regulate the supply of air to the said auxiliary channel.

17. In a carbureter, the combination of a suction pipe, an air inlet device therefor, a throttle valve in said suction pipe, a fuel 7 nozzle, a compensating nozzle, means for supplying fuel to said nozzles, an auxiliary fuel nozzle communicz'iting ivith a `channel having its orifice in the wall of the suction pipe opposite the edge of the throttle valve. the opening of said auxiliary nozzle being slightly above the level of the fuel in the said fuel supply means, means for supplying fuel to said auxiliary nozzle, and means for supplying air to said auxiliary nozzle adjacent the opening thereof whereby to furnish an emulsion rich in spirit when said throttle v valve is slightly open.

18. In a carbureter, the ycombination of a suction pipe, an air inlet device therefor. a throttle valve in said suction pipe, a fuel nozzle, a compensating nozzle, means for supplying fuel to said nozzles, an auxiliary nozzle communicating vvith a channel having` its orifice in the vvall of the suction pipe. g5 near the edge of the throttle valve, means for supplying fuel to said auxiliary nozzle.

`means for supplying air to said auxiliary nozzle adjacent the opening thereof to furnish an emulsion rich in spirit when said throttle valve is slightly open, bysuctioirou the fuel, the opening on said auxiliary nozzle being slightly above the level of the fuel in said supply means, and means' for regulating the'quantitative proportions of thi` 105 said einulsio y l 19. In a carbureter, the combination of a suction pipe having an air inlet, a fuel nozzle therein, means to supply fuel to said nozzle, a throttle in said suction pipe..a channel having its orifice in tl-ie \vall of said suction pipe opposite to the throttle. an auxiliary nozzle opening in said channel. means to supply fuel to said auxiliary nozzle in which the level remains helovv the ori-lice of said auxiliary nozzle. means concentric to said nozzle to supply air to said channel. vvhei'ehy to furnish au emulsion rich in. fuel \vhen said throttle valve is slightlyl open. and means to adjust said auxiliary nozzle.

` Q0. In a carbureter, the combination of a suction pipe, an air inlet device therefor` means for controlling said air inlet. a fuel nozzle, means for supplying fuel to the nozzle, an auxiliary fuel nozzle, a channel establishing communication between the latter nozzle and the suctionpipe. said channel having its orifice in the \vall of said suction pipe near the edge of the throttle valve. a well having a calibrated orifice in its hase for the admission of fuel thereto and an orifice for the admission of air thereto, a closure for said well, a conduit connecting said member with said auxiliary nozzle and having a`fuel supply orifice above the level of the fuel in said well, a tube depending from said closure into said well, said tube having air admission orifices to supply air around said nozzle to draw the fuel therefrom by suction for admission into the air inlet device at slow speeds.

21. In a carbureter, the combination of a suction pipe, an air inlet device therefor, a throttle valve in said suction pipe, a fuel nozzle, a compensating nozzle, means vfor supplying fuel to said nozzles through independent channels, an auxiliary fuel nozzle communicating with a channel having its orifice in the wall of the suction pipe opposite to the edge of the throttle valve, the

opening of said auxiliary nozzle being slightly above the level of the fuel in the said fuel supply means, means for supplying fuel to said auxiliary nozzle through a common channell with that of the compensating nozzle, and means for supplying air to sald auxiliary nozzle belowT the opening thereof for travel upward by the nozzle open.

22. In a-carbureter, the combination of a suction pipe, an air inlet device therefor,a

throttle valve in said suction pipe, a fuel nozzle, a compensating nozzle, means for supplying fuel tosaid nozzles, an auxiliary nozzle communicating with the suction pipe, means for supplying fuel to said auxiliary nozzle, means for'supplying air to said auxiliary nozzle short of the orifice of the nozzle for causing the same to travel by said orice to. furnish an emulsion rich in spirit when said throttle valve is slightly open by suction on the fuel, the opening of said auxiliary vnozzle being slightly above the level of the fuel in said fuel supply means, and means to regulate the quantitative proportions of said emulsion.

In witness whereof I have signed this specification in the presence ofl two wit# nesses. Y

FRANQOIS BAVEREY. Witnesses:

GASTON `JEANNIAUX, MARIUS MENNAZ. 

